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From ed06ea24dc419a55fd5e9a1601f1144434360eda Mon Sep 17 00:00:00 2001
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From: Maxime Coquelin <maxime.coquelin@redhat.com>
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Date: Fri, 15 Jun 2018 15:48:46 +0200
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Subject: [PATCH] vhost: fix missing increment of log cache count
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The log_cache_nb_elem was never incremented, resulting
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in all dirty pages to be missed during live migration.
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Fixes: c16915b87109 ("vhost: improve dirty pages logging performance")
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Cc: stable@dpdk.org
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Reported-by: Peng He <xnhp0320@icloud.com>
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Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
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Acked-by: Ilya Maximets <i.maximets@samsung.com>
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Reviewed-by: Tiwei Bie <tiwei.bie@intel.com>
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(cherry picked from commit 511b413bbcbd711dcf582485a72213fa90595cbe)
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---
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lib/librte_vhost/vhost.h | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/lib/librte_vhost/vhost.h b/lib/librte_vhost/vhost.h
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index e0ab65e0c..429b974db 100644
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--- a/lib/librte_vhost/vhost.h
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+++ b/lib/librte_vhost/vhost.h
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@@ -387,6 +387,7 @@ vhost_log_cache_page(struct virtio_net *dev, struct vhost_virtqueue *vq,
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vq->log_cache[i].offset = offset;
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vq->log_cache[i].val = (1UL << bit_nr);
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+ vq->log_cache_nb_elem++;
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}
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static __rte_always_inline void
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--
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2.17.1
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